Against the disease of writing one must take special precautions, since it is a dangerous and contagious disease.

In fact we say that an intention is good, that is, right in itself, but that an action does not bear any good in itself but proceeds from a good intention. Whence when the same thing is done by the same man at different times, by the diversity of his intention, however, his action is now said to be good, now bad.

The key to wisdom is this - constant and frequent questioning, for by doubting we are led to question and by questioning we arrive at the truth.

I preferred the weapons of dialectic to all the other teachings of philosophy, and armed with these, I chose the conflicts of disputation rather than the trophies of war.

It is by doubting that we come to investigate, and by investigating that we recognize the truth.

In comparing your sorrows with mine, you may discover that yours are in truth nought.. and so shall you come to bear them the more easily grateful that they are not worse.

The purpose and cause of the incarnation was that He might illuminate the world by His wisdom and excite it to the love of Himself.